fix playlist nav builder using correct index

tubearchivist/home/src/index.py

@@ -261,6 +261,17 @@ class YoutubeChannel:
 
         return all_entries
 
+    def get_indexed_playlists(self):
+        """get all indexed playlists from channel"""
+        data = {
+            "query": {
+                "term": {"playlist_channel_id": {"value": self.channel_id}}
+            },
+            "sort": [{"playlist_channel.keyword": {"order": "desc"}}],
+        }
+        all_playlists = IndexPaginate("ta_playlist", data).get_results()
+        return all_playlists
+
 
 class YoutubeVideo:
     """represents a single youtube video"""
@@ -586,26 +597,26 @@ class YoutubePlaylist:
         if not current or not len(all_entries) > 1:
             return False
 
-        current_idx = current[0]["idx"]
+        current_idx = all_entries.index(current[0])
         if current_idx == 0:
+            next_item = False
+        else:
+            next_item = all_entries[current_idx - 1]
+            next_thumb = ThumbManager().vid_thumb_path(next_item["youtube_id"])
+            next_item["vid_thumb"] = next_thumb
+
+        if current_idx == len(all_entries) - 1:
             previous_item = False
         else:
-            previous_item = all_entries[current_idx - 1]
+            previous_item = all_entries[current_idx + 1]
             prev_thumb = ThumbManager().vid_thumb_path(
                 previous_item["youtube_id"]
             )
             previous_item["vid_thumb"] = prev_thumb
 
-        if current_idx == len(all_entries) - 1:
-            next_item = False
-        else:
-            next_item = all_entries[current_idx + 1]
-            next_thumb = ThumbManager().vid_thumb_path(next_item["youtube_id"])
-            next_item["vid_thumb"] = next_thumb
-
         nav = {
             "playlist_meta": {
-                "current_idx": current_idx,
+                "current_idx": current[0]["idx"],
                 "playlist_id": self.playlist_id,
                 "playlist_name": self.playlist_dict["playlist_name"],
                 "playlist_channel": self.playlist_dict["playlist_channel"],